share the first authorship. share the first authorship. ZG Liu, Center of Allergy & Immunology, Shenzhen University School of Medicine, 3688 Nanhai Ave., Shenzhen 518060, China. E-maih Izg@szu.edu.cn Correspondence: Dr PC Yang, Center of Allergy & Immunology, Shenzhen University School of Medicine, 3688 Nanhai Ave., Shenzhen 518060, China. E-maih pcy2356@szu.edu.cn